THE CORONARY BLOOD VESSELS (THE FUEL LINES): STRUCTURE OF THE CORONARY ARTERIES & COMMON REASONS WHY YOUR HEART MAY DEMAND MORE OXYGEN

Structure of the Coronary Arteries

Like other arteries in the body, the coronary arteries have three layers: the inner layer (intima), the muscular layer (media), and the outer layer (adventitia). The inner surface of the blood vessel is lined by a layer of cells called the endothelium. The cavity (channel) within the vessel in which blood flows is called the lumen.